What types of amino acids would be in what places in the molecule in order to be - (Oct/07/2012 )

What types of amino acids would be in what places in the molecule on order to be embedded and floating in the phospholipid bilayer? (Refers to an integral membrane protein)

-gsharpnolack-

Trp, Tyr and Phe are strongly liked. Also other hydrophobic residues. But check this paper in which they compare the contacts different proteins make with lipid bilayers:
http://www.ncbi.nlm.nih.gov/pubmed/18400182